基于spring-mybatis-data-common基架快速搭建web应用

spring-mybatis-data-common做了哪些操作

1.日志依据层级归类输出,支持扩展

2.spring-mybatis持久层基础接口集成,支持扩展

3.常用业务接口定义,支持扩展.

只是一个简单的常用操作的集合(CRUD +Pager),方便spring与mybatis项目的整合开发.关于spring-mybatis的整合在插件的configuration中有实例,直接copy出来修改就可以用.

实例展示

1.引入spring-mybatis-data-common-1.0.jar包 下载地址: http://files.cnblogs.com/dennisit/spring-mybatis-data-common-1.0%E6%8F%92%E4%BB%B6.7z

copy插件configuration中的log4j.properties文件到自己项目中根据自己需要放置,实例中放置在WEB-INF/property文件夹下,在web.xml指定配置

     <!-- config log4j-->
     <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>/WEB-INF/property/log4j.properties</param-value>
    </context-param>

    <!-- log4j listener -->
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>

springmvc的整合,可以直接从插件configuration中copy出来修改.都是以往的普通操作流程

2.自定义实体类.如实例中我定义的实体为Article类.

3.依赖插件做持久层

package com.spring.mybatis.data.common.demo.dao;

import com.spring.mybatis.data.common.dao.BaseCudDao;
import com.spring.mybatis.data.common.dao.BaseReadDao;
import com.spring.mybatis.data.common.demo.domain.Article;
public interface ArticleDao extends BaseCudDao<Article>,BaseReadDao<Article>{
    //...可以自己扩展更多接口操作
}

插件中BaseCudDao接口定义了CUD操作

/**
 * mybatis persistence for base cud operate
 *
 * @author dennisit@163.com
 *
 * @param <T>
 */
public interface BaseCudDao<T extends Serializable> {

    // add entity
    public Integer insert(T entity) throws DaoException;

    // update entity
    public Integer update(T entity) throws DaoException;

    // delete entity
    public Integer delete(Long id) throws DaoException;

}

插件中BaseReadDao接口定义了Read操作

/**
 * mybatis persistence for base read operate
 * @author dennisit@163.com
 *
 * @param <T>
 */
public interface BaseReadDao<T extends Serializable> {

    // query entity by id
    public T selectById(Long id) throws DaoException;

    // query entity by condition
    public List<T> find(@Param("object") T t,
                        @Param("start") int start,
                        @Param("size") int size) throws DaoException;

    // query entity collection size by condition
    public Integer findCount(@Param("object") T t) throws DaoException;

}

继承插件接口,之后我们做自己的实现即可,当然可以自己扩展更多的接口做持久层.实例接口实现

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.spring.mybatis.data.common.demo.dao.ArticleDao">

  <!-- 插入数据,返回主键Id -->
  <insert id="insert" parameterType="article" useGeneratedKeys="true" keyProperty="id" flushCache="true">
      INSERT INTO tb_article(
           title ,
         content ,
         createDate)
    VALUES(
        #{title},
        #{content},
        #{createDate}
    )
  </insert>

  <delete id="delete" parameterType="long" flushCache="true">
      DELETE FROM
          tb_article
      WHERE
          id=#{id}
  </delete>

  <select id="selectById" parameterType="long" resultType="article">
      SELECT
          id AS id,title AS title,content AS content,createDate AS createDate
      FROM
          tb_article
      WHERE
          id=#{id}
  </select>

  <select id="find" resultType="article"  useCache="true">
      SELECT
          id AS id,title AS title,content AS content,createDate AS createDate
      FROM
          tb_article
      WHERE
          1=1
      <if test="object.title!= null and ''!=object.title">
        <![CDATA[ AND title = #{object.title} ]]>
    </if>
      <if test="object.content!= null and ''!=object.content">
        <![CDATA[ AND content = #{object.content} ]]>
    </if>
    <if test="object.createDate!= null and ''!=object.createDate">
        <![CDATA[ AND createDate = #{object.createDate} ]]>
    </if>
        LIMIT #{start},#{size}
  </select>

  <select id="findCount" resultType="int" >
      SELECT
          count(1)
      FROM
          tb_article
      WHERE
          1=1
      <if test="object.title!= null and ''!=object.title">
        <![CDATA[ AND title = #{object.title} ]]>
    </if>
      <if test="object.content!= null and ''!=object.content">
        <![CDATA[ AND content = #{object.content} ]]>
    </if>
    <if test="object.createDate!= null and ''!=object.createDate">
        <![CDATA[ AND createDate = #{object.createDate} ]]>
    </if>
  </select>

  <update id="update" parameterType="article" flushCache="true">
      UPDATE
          tb_article
      <set>
          <if test="object.title!= null and ''!=object.title">
            <![CDATA[ title = #{object.title}, ]]>
        </if>
          <if test="object.content!= null and ''!=object.content">
            <![CDATA[ content = #{object.content}, ]]>
        </if>
        <if test="object.createDate!= null and ''!=object.createDate">
            <![CDATA[ createDate = #{object.createDate} ]]>
        </if>
      </set>
      WHERE
          id=#{object.id}
  </update>

</mapper>

这里需要说明的是namespace指定的是对应的的接口,id为接口中的方法,使用AS 别名映射成实体类中的属性.

关于Mybatis扫描持久层时的配置

    <!--
        配置持久层操作文件扫描路径,basePackage指定的是持久层Dao所有接口存放文档
     -->
    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
        <property name="basePackage" value="com.spring.mybatis.data.common.demo.dao" />
    </bean>

    <!--
        在遵守命名规范的前提下,使用扫描domain包,省去别名配置文件别名形式: 对应的domain类首字母小写
     -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
         <property name="typeAliasesPackage" value="com.spring.mybatis.data.common.demo.domain"/>
    </bean>

如果只做上面配置的话,默认扫描时回去basePackage下面去寻找对应的mapper xml文件,所以上面配置需要我们将xml文件和对应的接口放置在同一个目录下,如果没有在同一个目录下,且自定义别名的话,可以使用如下配置

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:/mybatis/mybatis-config.xml" />
        <property name="mapperLocations" value="classpath:/mybatis/map/*.xml" />
    </bean>

4.依赖插件做service层

package com.spring.mybatis.data.common.demo.service;

import com.spring.mybatis.data.common.demo.domain.Article;
import com.spring.mybatis.data.common.service.BaseService;

public interface ArticleService extends BaseService<Article, Long>{
    //此处可以自己扩展更多的业务接口
}

实例service实现

package com.spring.mybatis.data.common.demo.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.spring.mybatis.data.common.demo.dao.ArticleDao;
import com.spring.mybatis.data.common.demo.domain.Article;
import com.spring.mybatis.data.common.demo.service.ArticleService;
import com.spring.mybatis.data.common.exception.DaoException;
import com.spring.mybatis.data.common.exception.ServiceException;
import com.spring.mybatis.data.common.log.LogHandler;
import com.spring.mybatis.data.common.page.Page;
/**
 *
 * @author dennisit@163.com
 *
 */
@Service("articleService")
public class ArticleServiceImpl implements ArticleService{

    @Autowired
    private ArticleDao articleDao;

    @Override
    public int deleteById(Long id) throws ServiceException {
        try {
            return this.articleDao.delete(id);
        } catch (DaoException e) {
            LogHandler.daoLogError("delete by id error , id = " + id, e);
        }
        return 0;
    }

    @Override
    public int save(Article entity) throws ServiceException {
        try {
            return this.articleDao.insert(entity);
        } catch (DaoException e) {
            LogHandler.daoLogError("save entity error, entity = " + entity, e);
        }
        return 0;
    }

    @Override
    public Article selectById(Long id) throws ServiceException {
        try {
            return this.articleDao.selectById(id);
        } catch (DaoException e) {
            LogHandler.daoLogError("select by id error, id = " + id, e);
        }
        return null;
    }

    /* (non-Javadoc)
     * @see com.spring.mybatis.data.common.service.BaseService#selectObject(java.io.Serializable)
     */
    @Override
    public Article selectObject(Article t) throws ServiceException {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public Page<Article> selectPage(Article t, Integer pageNow, Integer pageSize)throws ServiceException {
        Page<Article> page = null;
        try {
            List<Article> list = this.articleDao.find(t, (pageNow-1)*pageSize, pageSize);
            int recordTotal = this.articleDao.findCount(t);
            page = new Page<Article>(list, recordTotal, pageNow,pageSize);
        } catch (DaoException e) {
            LogHandler.daoLogError("select page error, entity = "
                    + t
                    + "pageNow=" + pageNow
                    + "pageSize=" + pageSize, e);
        }
        return page;
    }

    @Override
    public int update(Article entity) throws ServiceException {
        try {
            return this.articleDao.update(entity);
        } catch (DaoException e) {
            LogHandler.daoLogError("update entity error, entity = " + entity, e);
        }
        return 0;
    }

    /* (non-Javadoc)
     * @see com.spring.mybatis.data.common.service.BaseService#selectPage(java.io.Serializable, java.lang.Long, java.lang.Integer)
     */
    @Override
    public int deleteObject(Article entity) throws ServiceException {
        // TODO Auto-generated method stub
        return 0;
    }

    public void setArticleDao(ArticleDao articleDao) {
        this.articleDao = articleDao;
    }

}

因为插件中带有分页插件,所以可以使用下面操作,实现分页数据获取

    List<Article> list = this.articleDao.find(t, (pageNow-1)*pageSize, pageSize);
    int recordTotal = this.articleDao.findCount(t);
    Page<Article> page = new Page<Article>(list, recordTotal, pageNow,pageSize);

5.控制层根据自己需要,实例使用springmvc实现,给出实例代码如下

package com.spring.mybatis.data.common.demo.controller;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.spring.mybatis.data.common.controller.BaseMultiController;
import com.spring.mybatis.data.common.demo.domain.Article;
import com.spring.mybatis.data.common.demo.service.ArticleService;
import com.spring.mybatis.data.common.exception.ServiceException;
import com.spring.mybatis.data.common.log.LogHandler;
import com.spring.mybatis.data.common.page.Page;

@Controller
@RequestMapping(value="/article")
public class ArticleController extends BaseMultiController{

    @Autowired
    private ArticleService articleService;

    /**
     * <dl>
     *         <dt>支持的请求处理格式</dt>
     *         <dd>http://localhost:8080/spring-mybatis-data-common-demo-web/article/detail-1325.html</dd>
     *         <dd>http://localhost:8080/spring-mybatis-data-common-demo-web/article/1325/detail</dd>
     * <dl>
     *
     * 根据Id查询
     * @param request
     * @param response
     * @param id
     * @return
     */
    @RequestMapping(value={"/{id:\\d+}/detail","/detail-{id:\\d+}.html"}, method={RequestMethod.GET})
    public ModelAndView detailArticle(HttpServletRequest request, HttpServletResponse response,@PathVariable("id") Long id){
        Map<String,Object> map = new HashMap<String, Object>();
        try {
            Article article = this.articleService.selectById(id);
            map.put("article",article);
        } catch (ServiceException e) {
            LogHandler.serviceLogError("select entity by id error, id = " + id, e);
        }
        String viewPath = "article/detail";
        return toView(viewPath, map);
    }

    /**
     * <dl>
     *         <dt>支持的请求处理格式</dt>
     *         <dd>http://localhost:8080/spring-mybatis-data-common-demo-web/article/delete-2-1325.html</dd>
     *         <dd>http://localhost:8080/spring-mybatis-data-common-demo-web/article/2-1325/delete</dd>
     * <dl>
     * 删除某页的某个记录
     * @param request
     * @param response
     * @param id
     * @return
     */
    @RequestMapping(value={"/{pageNow:\\d+}-{id:\\d+}/delete","/delete-{pageNow:\\d+}-{id:\\d+}.html"}, method={RequestMethod.GET})
    public ModelAndView deleteArticle(HttpServletRequest request, HttpServletResponse response,@PathVariable("pageNow") Integer pageNow, @PathVariable("id") Long id){
        Map<String,Object> map = new HashMap<String, Object>();
        try {
            int result  = this.articleService.deleteById(id);
            if(result>0){
                LogHandler.ctrlLogInfo("删除记录总数:" + result);
                map.put("message", "删除成功");
            }
            map.put("message", "删除失败");
        } catch (ServiceException e) {
            LogHandler.serviceLogError("delete entity by id error, id = " + id, e);
            map.put("message", "删除失败");
        }
        String redirectUrl = "../page-" + pageNow + ".html";
        return redirectView(redirectUrl);
    }

    /**
     * <dl>
     *         <dt>支持的请求处理格式</dt>
     *         <dd>http://localhost:8080/spring-mybatis-data-common-demo-web/article/page-1.html</dd>
     *         <dd>http://localhost:8080/spring-mybatis-data-common-demo-web/article/1/page</dd>
     * <dl>
     *
     * 分页查询
     *
     * @param request
     * @param response
     * @param pageNow
     * @return
     */
    @RequestMapping(value={"/page/{pageNow:\\d+}","page-{pageNow:\\d+}.html"},method={RequestMethod.GET,RequestMethod.POST})
    public ModelAndView selectArticle(HttpServletRequest request,HttpServletResponse response,@PathVariable("pageNow") Integer pageNow, @ModelAttribute("article") Article article){
        Map<String,Object> map = new HashMap<String, Object>();
        Page<Article> page = null;
        //Article article = new Article();
        try {
            LogHandler.ctrlLogInfo("查询条件:" + article);
            page = this.articleService.selectPage(article, pageNow, pageSize);
            System.out.println(page);
            map.put("page", page);
            List<Article> items = page.getItems();
            if(null!=items){
                for(Article at: items){
                    LogHandler.ctrlLogInfo(at.getTitle() + "-" + at.getContent());
                }
            }
        } catch (ServiceException e) {
            LogHandler.serviceLogError("query by page , condition =" + article,e);
        }
        String viewPath = "article/lists";
        return toView(viewPath, map);
    }

    /**
     * 添加新对象
     * @param request
     * @param response
     * @param article
     * @return
     */
    @RequestMapping(value={"/add","/add.html"},method={RequestMethod.POST})
    public ModelAndView updateArticle(HttpServletRequest request,HttpServletResponse response,@ModelAttribute("article") Article article){
        Map<String,Object> map = new HashMap<String, Object>();
        try {
            int optNum = this.articleService.save(article);
            if(optNum > 0){
                map.put("message", "article saved success");
            }
        } catch (ServiceException e) {
            map.put("message", "article saved error");
            LogHandler.serviceLogError("save entity error, entity =" + article,e);
        }
        String viewPath = "article/lists";
        return toView(viewPath, map);
    }

    /**
     * <dl>
     *         <dt>支持的请求处理格式</dt>
     *         <dd>localhost:8080/spring-mybatis-data-common-demo-web/article/message/1/page</dd>
     *         <dd>localhost:8080/spring-mybatis-data-common-demo-web/article/message/page-1.html</dd>
     * <dl>
     *
     * @param request
     * @param response
     * @param id
     * @return
     */
    @RequestMapping(value={"/message/{pageNow:\\d+}/page","/message/page-{pageNow:\\d+}.html"}, method={RequestMethod.GET})
    public @ResponseBody String pageMessage(HttpServletRequest request, HttpServletResponse response,@PathVariable("pageNow") Integer pageNow){
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("UTF-8");
        Page<Article> page = null;
        Article article = new Article();
        try {
            page = this.articleService.selectPage(article, pageNow, pageSize);
            StringBuffer tmp = new StringBuffer("第" + pageNow + "页的结果集列表如下:<br/>");
            List<Article> items = page.getItems();
            if(null!=items){
                for(Article at: items){
                    tmp.append(at.getTitle() + "-" + at.getContent()).append("<br/>");
                }
            }
            return tmp.toString();
        } catch (ServiceException e) {
            LogHandler.serviceLogError("query by page , condition =" + article,e);
        }
        return "没有结果集";
    }

    public void setArticleService(ArticleService articleService) {
        this.articleService = articleService;
    }
}

实例展示完毕.

插件只是常用操作的定义集合,没有特别操作,不过如果简单的mvc应用,使用插件只做实现即可,还算方便把,自己闹着玩的.用来减少个人代码重复量.

实例地址: http://files.cnblogs.com/dennisit/spring-mybatis-data-common-demo.7z

转载请注明出处:[http://www.cnblogs.com/dennisit/p/3720706.html]